The phrase "lay one power" is spelled as /leɪ wʌn paʊər/. The first word "lay" is pronounced with the long "a" sound /leɪ/, followed by the word "one" pronounced as /wʌn/ with a short "o" sound. The final word "power" has two syllables, /paʊ-/ and /-ər/, with the vowel sound in the first syllable being the diphthong /aʊ/. Proper spelling of words is important to ensure clear communication and understanding between speakers and writers.