Unity - Water Cube (to 2D game)

I wonder if you can create a cube of water within the unity!

I’m starting to use the Unity, and took a sought as to whether there was already something like this … but have not found any tutorial

The idea is to use the 3D feature of water and turn it into a 2D scenario:

As shown below:

For this result:

The idea would be to make the cube of the material is “water”.

Its possible?