"Copper salt" is not a specific compound, but rather a general term for any salt that contains copper ions (Cu+ or Cu2+). To determine the specific name of a copper salt, you need to know the anion (negative ion) that it is paired with.

Here are some examples:

* Copper(I) chloride: CuCl

* Copper(II) chloride: CuCl₂

* Copper(I) sulfate: Cu₂SO₄

* Copper(II) sulfate: CuSO₄

* Copper(I) oxide: Cu₂O

* Copper(II) oxide: CuO

The Roman numeral in parentheses indicates the oxidation state of the copper ion.

To get a specific compound name, you need to specify the anion. For example, "copper chloride" is ambiguous because it could refer to either copper(I) chloride or copper(II) chloride.