This is not a balanced chemical equation. The correct balanced equation for the reaction between FeCl3 and Cu is:
2FeCl3 + 3Cu → 2FeCl2 + 3CuCl2
This balanced equation shows that 2 moles of FeCl3 react with 3 moles of Cu to form 2 moles of FeCl2 and 3 moles of CuCl2.
This is not a balanced chemical equation. The correct balanced equation for the reaction between FeCl3 and Cu is:
2FeCl3 + 3Cu → 2FeCl2 + 3CuCl2
This balanced equation shows that 2 moles of FeCl3 react with 3 moles of Cu to form 2 moles of FeCl2 and 3 moles of CuCl2.