For the cell Zn(s) |Zn²⁺ (aq)| |M^x+ (aq)| M(s), different half cells and their standard electrode potentials are given below :
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M^x+ (aq)/M(s)
Au³⁺(aq)/Au(s)
Ag⁺(aq)/Ag(s)
Fe³⁺(aq)/Fe²⁺ (aq)
Fe²⁺(aq)/Fe(s)
E⁰M^x+_/M/(V)
1.40
0.80
0.77
0.44
If = 0.76 V, which cathode will give maximum value of E^o_cell per electron transferred?