The pronunciation is (according to the English way): oot próh-seem. This is the most common modern translation, therefor it is the most passable answer. However, latin is a pseudo-dead/zombie language spoken over two thousand years ago and preserved in large part by the catholic church, so I can give no guarenties that is it the "Correct" pronunciation.
Danebank's motto is 'Ut Prosim'.
That I may serve
That I may serve for honour's sake .
Plymouth State University's motto is 'Ut Prosim'.
Pamplin College of Business's motto is 'Ut Prosim'.
Old Swinford Hospital's motto is 'Ut Prosim'.
The motto of Virginia Tech Corps of Cadets is 'Ut prosim'.
Virginia Tech Police Department's motto is 'Ut Prosim'.
Virginia Tech College of Science's motto is 'Ut Prosim'.
The motto of The Winchendon School is 'Achieve Academic Success'.
That I may serve with the charity and light of God.
The phrase 'cum caritate et luce Dei' means with the love and light of God. In the word-by-word translation, the preposition 'cum' means 'with'. The noun 'caritate' means 'love'. The conjunction 'et' means 'and'. The noun 'luce' means 'light'. The noun 'Dei' means 'God'.