[Nitin_Naudiyal]

Fe ²⁺(aq) . Fe³⁺(aq) | Pt

The reduction reaction is given as

Fe²⁺ + e^-  Fe³⁺ (aq)

and  Cu⁺(aq),Cu²⁺ | Pt

Cu² + e^-  Cu⁺ (aq)

in case of Fe the Fe²⁺ ion accepts the electron and becomes 
Fe³⁺.

But why does in case of Cu the Cu²⁺ ion accepts the Electron and becomes  Cu⁺

[Schrödinger]

Fe²⁺ does NOT accept an electron and become Fe³⁺. It should be the other way around.

[Borek]

The reduction reaction is given as

Fe²⁺ + e^-  Fe³⁺ (aq)

This is not reduction.

But why does in case of Cu the Cu²⁺ ion accepts the Electron and becomes  Cu⁺

There is something fishy either about the question, or about the way you posted it. Please elaborate.

[Nitin_Naudiyal]

They have Given the Redox electrode representation

Fe ²⁺(aq) . Fe³⁺(aq) | Pt

and then the reduction reaction for the Electrode

Fe²⁺ + e^-  Fe³⁺ (aq)




Then they have given another Example

Cu⁺(aq),Cu²⁺ | Pt
and its reduction reaction

Cu² + e^-  Cu⁺ (aq)




i wanted to know how do these reactions occur and if one compares the reduction Reaction of Cu and Fe why are they diffrent ?

[AWK]

_{Fe2+ + e- =  Fe3+ (aq)}

Why not
Fe³⁺(aq) + e^- =  Fe²⁺(aq)

[Nitin_Naudiyal]

Fe2+ + e- =  Fe3+ (aq)

Why not
Fe3+(aq) + e- =  Fe2+(aq

Yes i wanted to ask this . why is this not possible.

[Borek]

Because +2 + (-1) ≠ +3, an obvious consequence of the charge conservation.

I am not convinced you understand the notation, problem and your own question