Max 24w laser height for etching?

I’m about to purchase a laser and my first job will be to etch text on the inside of a serving tray. The sides of the tray are 1/2" tall, so the laser needs to be set higher than the recommended 1/8". Can this be adjusted? How high can the laser be set and still get a good resolution? Or how much clearance can I get around the laser to etch withing a ‘bowl’?