If by the verdict in a civil action tried to a jury any party in the action is entitled to recover money from an adverse party, the jury shall determine the amount of the recovery in its verdict.
Ohio Rev. Code Ann. § 2315.07, under Chapter 2315 | Trial Procedure.
Ohio Rev. Code Ann. § 2315.07
If by the verdict in a civil action tried to a jury any party in the action is entitled to recover money from an adverse party, the jury shall determine the amount of the recovery in its verdict.