The correct spelling of the phrase "art unable lay hands on" is actually "are unable to lay hands on." The phonetic transcription of this phrase is /ɑr ʌnˈeɪbəl tu leɪ hændz ɑn/. It's important to remember that sometimes our ears can deceive us, leading us to spell words or phrases incorrectly. In this case, it's easy to see how the "r" in "are" could be mistaken for an "t" sound. Always double-check the spelling of a word or phrase if it looks or sounds off.