Okay, the user wants me to translate "cupric salt" into Japanese. Let me think. First, "cupric" refers to copper in the +2 oxidation state. In Japanese, that's usually 銅(かね) or 銅(どう), but in chemical terms, it's more common to use 銅(どう) for the element. Then "salt" would be 塩 (えん) in this context. So combining them, it's probably 銅(どう)塩 (えん). Wait, but sometimes in chemical terminology, they might use specific terms. Let me check if there's a standard translation for "cupric salt." Oh right, in Japanese chemical terms, "cupric salt" is often translated as 銅(どう)塩 (えん) or maybe 銅(かね)塩. However, I think 銅(どう)塩 is more accurate here. The user specified to translate into Japanese, so I should go with 銅塩. Wait, but the user might be expecting a specific term. Let me confirm. If the original is "cupric salt," which is a salt of copper(II), then in Japanese, it's 銅(どう)塩. So the correct translation is 銅塩. I'll make sure not to add any explanations, just the translation.