The compound made from 1 atom of copper, 1 atom of sulfur, and 4 atoms of oxygen is copper(II) sulfate, also known as cupric sulfate.

Here's the breakdown:

* Copper (Cu): One atom of copper

* Sulfur (S): One atom of sulfur

* Oxygen (O): Four atoms of oxygen

The chemical formula for copper(II) sulfate is CuSO₄.