Question

Why does copper have a positive electrode potential?

Answer 1

Copper forms its ions less readily than hydrogen does. ... A major change is that copper is the more positive (less negative) electrode. The voltmeter shows the hydrogen electrode as the negative one and the copper electrode as positive.

Answer 2

Copper forms its ions less readily than hydrogen does. ... A major change is that copper is the more positive (less negative) electrode. The voltmeter shows the hydrogen electrode as the negative one and the copper electrode as positive.