You will need 10.10 g of Al.
Step 1. Write the balanced chemical equation.
Word equation: iron(III) oxide + aluminum → aluminium oxide + iron
Unbalanced equation: Fe₂O₃ + Al → Al₂O₃ + Fe
Balanced equation: Fe₂O₃ + 2Al → Al₂O₃ + 2Fe
Step 2. Calculate the moles of Fe₂O₃
Step 3. Calculate the moles of Al
Step 4. Calculate the mass of Al