I am learning 2d development in unity and currently doing a projet Ruby’s Adventure 2d beginner. I wanted to know after completing the project and making this game for Android can I integrate ads on it and can publish it to google play store?
You sure can you just have to integrate Unity Ads in your game and create the scripts. There are plenty of videos on youtube! Unity Ads has every legal problem solved for you such as cookies and data collection for the ads! Good Luck.