The standard electrode potential for the redox reaction between copper and silver ions can be determined using the standard reduction potentials for both half-reactions.The standard reduction potentials at 25C and 1 atm are as follows:Cu + 2e Cu s E = +0.34 VAg + e Ag s E = +0.80 VTo find the standard electrode potential for the overall redox reaction, we need to combine these half-reactions. First, we need to balance the electrons:Cu + 2e Cu s 2 Ag + e Ag s Now, we can combine the half-reactions:Cu + 2Ag + 2e Cu s + 2Ag s + 2eThe electrons cancel out:Cu + 2Ag Cu s + 2Ag s Now, we can calculate the standard electrode potential for the overall redox reaction by subtracting the standard reduction potential of the half-reaction being oxidized copper from the standard reduction potential of the half-reaction being reduced silver :E cell = E reduction - E oxidation E cell = +0.80 V - +0.34 V E cell = +0.46 VSo, the standard electrode potential for the redox reaction between copper and silver ions at 25C and 1 atm is +0.46 V.