It depends where you're attending Ohio State.
If you're a Columbus, Lima, Mansfield or Newark campus student you'll receive your device at orientation, but you'll need to remember your state-issued photo ID or BuckID. If you miss orientation or forget your ID you'll be able to pick up your device when you arrive on campus.
If you plan to attend Ohio State Marion or Wooster/ATI, you'll receive your device near the start of your first semester. You will receive additional details about your iPad as the semester nears.