Starbucks Corp. will offer a new plus-sized iced drink beginning this week. The “Trenta” will be 31 ounces — one ounce shy of a quart — and available for iced coffee, Tazo shaken iced tea and iced tea lemonade, CNNMoney.com said. Starbucks is rolling out the Trenta in 14 states in the South and Southwest beginning Tuesday. In early May, the Trenta will be sold in all U.S. Starbucks stores, the company said. The Trenta-sized drinks will cost 50 cents more than its current largest drink, the 24-ounce “Venti Iced,” according to Starbucks. The largest hot drink is the 20-ounce “Venti.”