The spelling of the word "Chalney" can be explained using the International Phonetic Alphabet (IPA) transcription. The first sound, "ch," is a voiceless palato-alveolar affricate represented by /tʃ/. The following sound, "al," is pronounced as a short vowel and represented as /æ/. The next sound, "n," is a voiced alveolar nasal and represented by /n/. Finally, the last sound, "ey," is pronounced as a diphthong and represented as /eɪ/. Therefore, the correct spelling of this word is "Chalney," pronounced /tʃælniː/.