JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
<div class="input-group">
  <label for="servicos">NECESSITA EMBALAGENS?</label>

  <div class="checkbox">
   <label><input type="checkbox" name="servicos" value="Pelicula Aderente">Pelicula Aderente</label>
  </div>

  <div class="checkbox">
   <label><input type="checkbox" name="servicos" value="Cartão Canelado" checked="checked">Cartão Canelado</label>
  </div>

  <div class="checkbox">
   <label><input type="checkbox" name="servicos" value="Caixa Cartão">Caixa Cartão</label>
  </div>

  <div class="checkbox">
   <label><input type="checkbox" name="servicos" value="Plástico Bolha" checked="checked">Plástico Bolha</label>
  </div>
</div>

JavaScript

var arr = [];

$("input:checkbox[name=servicos]:checked").each(function(){
    arr.push($(this).val());
});

arr.forEach(function(item) {
    console.log(item ? 'true' : 'false');
});