The compound with the formula Cu(C2H3O2)2 is called copper(II) acetate.
To explain this further, the formula indicates that we have a copper ion (Cu2+) that is associated with two acetate ions (C2H3O2–). Copper can exist in multiple oxidation states, and in this case, it’s in the +2 state. The acetate ion is a common organic ion derived from acetic acid, and its presence with the copper ion forms the compound copper(II) acetate. This compound is often used in organic synthesis and as a reagent in various chemical reactions.