In a voltaic cell, a zinc anode in a zinc sulfate solution is one half-cell, and a copper cathode in a copper(II) sulfate solution is the anode. When the circuit is completed, the proper shorthand notation for the cell is ____
Cu2+(aq) | Cu(s) || Zn(s) | Zn2+(aq)
Cu2+(aq) | Cu(s) || Zn2+(aq) | Zn(s)
Zn2+(aq) | Zn(s) || Cu2+(aq) | Cu(s)
Zn(s) | Zn2+(aq) || Cu2+(aq) | Cu(s)
Zn(s) | Zn2+(aq) || Cu(s) | Cu2+(aq)
