Consider the molecular views of an Al strip and $Cu^{2+}$ solution. Describe what happens to the atoms and ions after the Al strip is submerged in the solution for a few minutes.
Nothing happens, Al strip and $Cu^{2+}$ (aq) will remain in the system.
Al will dissolve to generate $Al^{3+}$ (aq), and $Cu^{2+}$ (aq) will be oxidized to $Cu^{+}$ (aq).
Al will dissolve to generate $Al^{3+}$ (aq), and Cu(s) will deposit.