Which reaction proceeds with the greatest increase in entropy?

The reaction which proceeds with the greatest increase in entropy is,${\mathrm{Cu}}^{2+}\left(aq\right)+\mathrm{Zn}\left(s\right)⟶\mathrm{Cu}\left(s\right)+{\mathrm{Zn}}^{2+}\left(aq\right)$

In this reaction, more number of moles is obtained compare to the reactants.