Converting Collider to Bounds variable?

I apparently suck at coding C#, I have absolutely no idea where to even start with fixing this error. I have an idea of what it is, but I don’t know what variables I need to put in the middle for it to work. Here is my script:

using UnityEngine;
using System.Collections;

public class AfterInstantiation : MonoBehaviour {
	private GameObject control;
	private GameManager manager;
	private bool overlapping = true;
	private GameObject overlapper;
	private Bounds bounds1;
	private Collider[] hitColliders;
	private Bounds bounds2;

	void Start(){
		overlapper = GameObject.FindGameObjectWithTag("ground");
		bounds1 = gameObject.renderer.bounds;
		hitColliders = Physics.OverlapSphere(transform.position, 2);
		bounds2 = hitColliders;


		if (!bounds1.Intersects (bounds2)){
			Debug.Log ("Destroying " + gameObject);
			Destroy (gameObject);
		}

		else {
			MarkAsInstantiated ();
		}
		
	}

	void MarkAsInstantiated(){
		control = GameObject.FindGameObjectWithTag ("Manager");
		manager = control.GetComponent <GameManager> ();
		GameManager.dungeonsExisting += 1;
	}
}

I am trying to get the object to delete itself if it spawns on top of another object, so I want to draw an OverlapSphere to check if the object is hitting another object, and if it is, I want to delete it. So here is the error I be getting on line 17:

Assets/Scripts/Level Generators/Corridors and Rooms/AfterInstantiation.cs(17,17): error CS0029: Cannot implicitly convert type UnityEngine.Collider[]' to UnityEngine.Bounds’

I have no idea how to even start trying to fix this error, though it’s probably something obvious. Any ideas? Help is much appreciated.

Edit:

If anybody could tell me how to convert hitColliders into all the gameObjects that it hits, I could also go from there.

You need to initialize your array in order to interact with bounds2 and then assign that to your bounds2 variable.