Consider reacting copper(II) sulfate with iron. Two possible reactions can occur, as represented by the following equations.

copper(II)sulfate(aq) + iron(s) → copper(s) + iron(II) sulfate(aq)

copper(II) sulfate(aq) + iron(s) → copper(s) + iron(III) sulfate(aq)

You place 87.7 mL of a 0.500 M solution of copper(II) sulfate in a beaker. You then add 2.00 g of iron filings to the copper(II) sulfate solution. After the reaction occurs, you isolate 2.27 g of copper. Which equation above de-scribes the reaction that occurred? Support your answer.