Write SQL query to solve given problem: How many scenes are there in the 5th act of "History of Henry VIII"?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT SUM(T2.Scene) FROM works AS T1 INNER JOIN chapters AS T2 ON T1.id = T2.work_id WHERE T2.Act = 5 AND T1.LongTitle = 'History of Henry VIII'