(A) : If E⁰ of Cu²⁺/Cu = +0.34V and E⁰ of Ag⁺/Ag = +0.80V then galvanic cell constructed from these is Ag/Ag⁺//Cu²⁺/Cu
(R) : In any galvanic cell the reaction that takes place is a redox reaction

Electrode having higher reduction potential acts as cathode and electrode having lesser reduction potential acts as anode. In the given cell reaction electrode having higher reduction potential is anode and lower reduction potential is cathode, EMF is negative and cell reaction is non -spontaneous

Correct cell is $\mathrm{Cu}\left|{\mathrm{Cu}}^{+2}\right|\left|{\mathrm{Ag}}^{+}\right|\mathrm{Ag}$